Simulation studies for dielectric wakefield programme at CLARA facility

TL;DR

This paper presents simulation studies supporting the development of dielectric wakefield acceleration at CLARA, focusing on THz radiation, transverse wake effects, and dechirper design using Impact-T and VSim.

Contribution

It provides detailed simulation results that prepare for experimental DWA at CLARA, including phase space evolution and wakefield effects.

Findings

Successful simulation of longitudinal and transverse phase space evolution.

Insights into transverse wake impacts on electron bunches.

Design considerations for a dechirper at CLARA.

Abstract

Short, high charge electron bunches can drive high magnitude electric fields in dielectric lined structures. The interaction of the electron bunch with this field has several applications including high gradient dielectric wakefield acceleration (DWA) and passive beam manipulation. The simulations presented provide a prelude to the commencement of an experimental DWA programme at the CLARA accelerator at Daresbury Laboratory. The key goals of this program are: tunable generation of THz radiation, understanding of the impact of transverse wakes, and design of a dechirper for the CLARA FEL. Computations of longitudinal and transverse phase space evolution were made with Impact-T and VSim to support both of these goals.